haraldwolff/qemu-patch-raspberry4
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Partially revert "hw/block/nvme: drain namespaces on sq deletion"

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This partially reverts commit 98f84f5a4e.

Since all "multi aio" commands are now reimplemented to properly track
the nested aiocbs, we can revert the "hack" that was introduced to make
sure all requests we're properly drained upon sq deletion.

The revert is partial since we keep the assert that no outstanding
requests remain on the submission queue after the explicit cancellation.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Klaus Jensen 2021-06-17 21:06:57 +02:00
parent 3bcf26d3d6
commit e76fb260ca
1 changed files with 2 additions and 17 deletions
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19
hw/nvme/ctrl.c
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@ -3918,7 +3918,6 @@ static uint16_t nvme_del_sq(NvmeCtrl *n, NvmeRequest *req)
NvmeSQueue *sq;
NvmeCQueue *cq;
uint16_t qid = le16_to_cpu(c->qid);
uint32_t nsid;
if (unlikely(!qid || nvme_check_sqid(n, qid))) {
trace_pci_nvme_err_invalid_del_sq(qid);
@ -3930,22 +3929,8 @@ static uint16_t nvme_del_sq(NvmeCtrl *n, NvmeRequest *req)
sq = n->sq[qid];
while (!QTAILQ_EMPTY(&sq->out_req_list)) {
r = QTAILQ_FIRST(&sq->out_req_list);
if (r->aiocb) {
blk_aio_cancel(r->aiocb);
}
}
/*
* Drain all namespaces if there are still outstanding requests that we
* could not cancel explicitly.
*/
if (!QTAILQ_EMPTY(&sq->out_req_list)) {
for (nsid = 1; nsid <= NVME_MAX_NAMESPACES; nsid++) {
NvmeNamespace *ns = nvme_ns(n, nsid);
if (ns) {
nvme_ns_drain(ns);
}
}
assert(r->aiocb);
blk_aio_cancel(r->aiocb);
}
assert(QTAILQ_EMPTY(&sq->out_req_list));